/*
  This file is part of libkdepim.

  Copyright (c) 1999 Preston Brown <pbrown@kde.org>
  Copyright (c) 1999 Ian Dawes <iadawes@globalserve.net>

  This program is free software; you can redistribute it and/or modify
  it under the terms of the GNU General Public License as published by
  the Free Software Foundation; either version 2 of the License, or
  (at your option) any later version.

  This program is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  GNU General Public License for more details.

  You should have received a copy of the GNU General Public License along
  with this program; if not, write to the Free Software Foundation, Inc.,
  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.

  As a special exception, permission is given to link this program
  with any edition of Qt, and distribute the resulting executable,
  without including the source code for Qt in the source distribution.
*/
#ifndef KDEPIM_KTIMEEDIT_H
#define KDEPIM_KTIMEEDIT_H

#include "kdepim_export.h"

#include <QComboBox>
#include <QTime>

class QKeyEvent;

namespace KPIM {

/**
  This is a class that provides an easy, user friendly way to edit times.
  up/down/ increase or decrease time, respectively.

  @short Provides a way to edit times in a user-friendly manner.
  @author Preston Brown, Ian Dawes
*/
class KDEPIM_EXPORT KTimeEdit : public QComboBox
{
  Q_OBJECT
  public:
    /** constructs a new time edit. */
    explicit KTimeEdit( QWidget *parent=0, QTime qt=QTime( 12, 0 ), const char *name=0 );

    virtual ~KTimeEdit();

    /**
      Returns, if a time is selected. Can not return false anymore....
    */
    bool hasTime() const;

    /** returns the time that is currently set in the timeLineEdit. */
    QTime getTime() const;

    /** returns the preferred size policy of the KTimeEdit */
    QSizePolicy sizePolicy() const;

    /** return true if input is a valid time and false if not */
    bool inputIsValid() const;

  Q_SIGNALS:
    /**
      Emitted every time the time displayed changes. "newt" is the new
      time.
    */
    void timeChanged( QTime newt );

  public Q_SLOTS:
    /** used to set the time which is displayed to a specific value. */
    void setTime( QTime qt );

  protected Q_SLOTS:
    void active( int );
    void hilit( int );
    void changedText();

  protected:
    virtual void keyPressEvent( QKeyEvent *qke );
    void addTime( QTime qt );
    void subTime( QTime qt );
    // Update the lineedit text from mTime
    void updateText();

  private:
    QTime mTime;                   // the widget's displayed time.
    //QString mNoTimeString;
};

}

#endif
